# US 9,438,069 B2 · Vehicle-mounted charger

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- Number: US 9,438,069 B2
- Document ID: US9438069B2
- Status: Granted
- Kind: B2
- Application number: 14/363,173
- Filed: 2012-12-05
- Published: 2014-11-27
- Granted: 2016-09-06
- Earliest claimed: 2011-12-07
- Assignees: Panasonic Intellectual Property Management Co., Ltd.
- Applicants: Panasonic Corporation
- Inventors: Hiromi Hongo
- Web page: https://patentgrep.com/patent/US9438069B2

## CPC

- H02J 50/10: using inductive coupling
- H02J 7/731: {specially adapted for holding portable devices containing batteries (H02J7/751 takes precedence)}
- H02J 50/90: involving detection or optimisation of position, e.g. alignment
- H02J 7/00: Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J 2207/10: Control circuit supply, e.g. means for supplying power to the control circuit
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY

## Abstract

A vehicle-mounted charger which performs wireless charging includes a control unit which controls energization of a primary coil, a position detection unit which detects a positional relationship between the primary coil and a secondary coil of an apparatus to be charged such as a mobile phone, and a notification unit which performs notification to the user. In a state where the energization of the primary coil is not performed, the control unit acquires the positional relationship between the primary coil and the secondary coil which is detected by the position detection unit, and controls the notification unit to notify of the positional relationship.

## Claims

### Claim 1

A vehicle-mounted charger which performs wireless charging, the vehicle-mounted charger comprising:
a control unit which controls energization of a primary coil;
a position detection unit which detects a positional relationship between the primary coil and a secondary coil of an apparatus to be charged; and
a notification unit which performs notification to a user,
wherein in a state where the energization of the primary coil is not performed, the control unit acquires the positional relationship between the primary coil and the secondary coil which is detected by the position detection unit, and controls the notification unit to notify of the positional relationship.

### Claim 2 (depends on 1)

The vehicle-mounted charger according to claim 1, wherein the position detection unit has a plurality of position detecting coils which are placed on an upper surface of the primary coil.

### Claim 3 (depends on 1)

The vehicle-mounted charger according to claim 1, wherein in a state where the primary coil and the secondary coil are sufficiently close to each other, the control unit causes the notification unit to perform primary notification, and starts the energization of the primary coil, and, when communication between the primary coil and the secondary coil is enabled, the control unit causes the notification unit to perform secondary notification which is different in notification content from the primary notification.

### Claim 4 (depends on 3)

The vehicle-mounted charger according to claim 3, further comprising:
a communication unit which communicates with a vehicle on which the vehicle-mounted charger is mounted,
wherein in accordance with a state of the vehicle which is obtained through the communication unit, the control unit starts the energization of the primary coil.